Backtrace

bitcoinjs-lib v0.2.9-beta.16

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bitcoinjs-lib / Backtrace

Class: Backtrace

Defined in: packages/scrypt-ts-btc/src/smart-contract/builtin-libs/backtrace.ts:20

Library for verifying backtraces all the way to the genesis point.

Onchain

Extends

• SmartContractLib

Constructors

new Backtrace()

new Backtrace(...args): Backtrace

Defined in: packages/scrypt-ts-btc/src/smart-contract/smartContractLib.ts:29

Parameters

args

...SupportedParamType[]

Returns

Backtrace

Inherited from

SmartContractLib.constructor

Properties

args

args: any[] = []

Defined in: packages/scrypt-ts-btc/src/smart-contract/smartContractLib.ts:28

Inherited from

SmartContractLib.args

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artifact

static artifact: Artifact

Defined in: packages/scrypt-ts-btc/src/smart-contract/smartContractLib.ts:15

Inherited from

SmartContractLib.artifact

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stateType?

static optional stateType: string

Defined in: packages/scrypt-ts-btc/src/smart-contract/smartContractLib.ts:16

Inherited from

SmartContractLib.stateType

Methods

loadArtifact()

static loadArtifact(artifact): typeof SmartContractLib

Defined in: packages/scrypt-ts-btc/src/smart-contract/smartContractLib.ts:18

Parameters

artifact

Artifact

Returns

typeof SmartContractLib

Inherited from

SmartContractLib.loadArtifact

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verifyChainTxs()

static verifyChainTxs(backtraceInfo, t_prevTxInputList): ChainTxVerifyResponse

Defined in: packages/scrypt-ts-btc/src/smart-contract/builtin-libs/backtrace.ts:74

Tx chain verification to ensure:

1. the current spending UTXO is the output of prevTx
2. the specific input of prevTx is the output of prevPrevTx

Parameters

backtraceInfo

BacktraceInfo

backtrace info to verify, including prevTx and prevPrevTx preimages

t_prevTxInputList

FixedArray\<ByteString, 6>

input list of the prevTx which should be trustable

Returns

ChainTxVerifyResponse

locking script and outpoint of the specified output of prevPrevTx

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verifyFromOutpoint()

static verifyFromOutpoint(backtraceInfo, t_genesisOutpoint, t_selfScript, t_prevTxInputList): void

Defined in: packages/scrypt-ts-btc/src/smart-contract/builtin-libs/backtrace.ts:30

Back-to-genesis backtrace verification for a contract which can be backtraced to the genesis outpoint. It will be a valid backtraceInfo if the prevPrevOutpoint is the genesis outpoint or the prevPrevScript is the selfScript.

Parameters

backtraceInfo

BacktraceInfo

backtrace info to verify, including prevTx and prevPrevTx informations

t_genesisOutpoint

ByteString

expected genesis outpoint of the contract which usually is a contract property and trustable

t_selfScript

ByteString

expected self locking script, i.e. this.ctx.spentScript, of the currect spending UTXO context which is trustable

t_prevTxInputList

FixedArray\<ByteString, 6>

input list of the prevTx which should be trustable

Returns

void

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verifyFromScript()

static verifyFromScript(backtraceInfo, t_genesisScript, t_selfScript, t_prevTxInputList): void

Defined in: packages/scrypt-ts-btc/src/smart-contract/builtin-libs/backtrace.ts:52

Back-to-genesis backtrace verification for a contract which can be backtraced to the genesis script. It will be a valid backtraceInfo if the prevPrevScript is the genesis script or the selfScript.

Parameters

backtraceInfo

BacktraceInfo

backtrace info to verify, including prevTx and prevPrevTx informations

t_genesisScript

ByteString

expected genensis locking script which usually is a contract property and trustable

t_selfScript

ByteString

expected self locking script, i.e. this.ctx.spentScript, of the current spending UTXO context and is trustable

t_prevTxInputList

FixedArray\<ByteString, 6>

input list of the prevTx which should be trustable

Returns

void